Carpenter s rule



Sept. 25, 192s. A 1,685,486 l A. G. GRAHAM CARPENTER S RULE Filed July 14, y1.925

Patented Sept. 25, 1928.

ALBERT G. GRAHAM, OF MONETTE, ARKANSAS.

CARPENTER S RULE.

Application filed July 14, 1925,

This invention relates to a novel measuring device and has for its primary object the provision of a carpenters rule, which can be used for measuring` any distance with a relativeshort rule, without the necessity of marktlic work at each ond 'of the rule, as the is advanced over the work during the ring irocess. janet-lier object of the invention is the pro- "l vision of a rule having points at each end f 'eof for engaging the work to permit the rui'V to be swung around on the work, as the le is advanced over the work, without the pping the rule and without the necessity i5 of marking the work.

A further obj ect of the invention is the provision of novel means for incorporating the points with the rule, whereby the said points can be placed upon conventional rules now '220 on the marketas well as rules in the course of manufacture.

A still further object of the invention is to provide an improved carpenter-s rule of t-he above character, which will be durable and 25 eiiicient in use, one that will be simple and easy to manufacture and one which can be placed upon the market at a reasonable cost.

Vith these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described, claimed and iliustrated in the accompanying drawings, in which drawings: l

Figure l is a plan view of the improved rule,

Figure 2 is an edge elevation of the same and I Figure 3 is a detail perspective view of one end of the rule showing the novel pivot point connected therewith,

Referri Y. o the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter A generally indicates the improved rule, which as shown is ofthe folding type embodying end sections 5 and 6 and intermediate sections 7 and 8, which are con- 'iected by the conventional knuckle or elbow joints l0. The rule is provided with relatively narrow longitudinal side faces and wide flat graduated faces.

ln accordance with this invention the outer ends of the end sections 5 and 6 have connected therewith pivot points 11 and 12 re- Serial No. 43,585.

spectively and these points are flush with the free ends of the said sections 5 and 6 and are adapted to engage the work incident to the measuring thereof, as will be hereinafter more fully described. The points 11 and 12 can be connected with the terminals of the rule in any desired way, and as shown the points are carried by the ends of sleeves 13 lwhich are of a polygonal shape in cross section to receive the free ends of the rule. Thus the sleeves i3 are slipped directly over the rules and are held against displacement thereon by the means of a suitable rivet or fastening pin 14. The points 1l and 12 project laterally from the wide graduated faces of the rule.

n use of the improved rule provided with the pivot points l1 and l2, if a board twelve i( to be measured and the rule is of a two foot length, it is merely necessary to square one end of the board and place one end of the rule flush with the squared end thereof. The opposite end of the rule is pressed down on the board until the pivot point penetrates into the board and the rule is swung around thereon until another two foot length is measured after which the other point is pressed in the board and the rule swung around thereon, This process continues until the desired length is measured.

From the foregoing description, it can be seen that a novel rule l y l in ity of I v measuring thereof i q- {Ji/x i I.y

A na i Changes in details may be made without departing from the spirit or the scope of this invention, but:

lVhat I claim as new is: Y peuters rule, the co' 'c i n with a body consisting of a plurality of alined sections having their adjacent ends hingedly connected together and provi led with longil tudinally entendi side edges and oppositely disposed substantially wide graduated faces, of pivot pins rigidly7 carried by the free ends of the outer sections of the rule and projecting laterally from one of said wide graduated faces and extending` at right angles i Y wan respect thereto, the outer sides of the pins lying flush with the said free ends of the outer sections.

In testimony whereof I affix my signature.

ALBERT e. GRAHAM. 

